41 lines
1.2 KiB
Org Mode
41 lines
1.2 KiB
Org Mode
* Homeostasis
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Temperature and humidity sensor that communicates via MQTT. The project is implemented using a Wemos D1 mini ESP32 board with a DHT22 shield.
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This specific shield needs to have the data line connected to a pin different to D4, as explained in [[lhttps://blog.zs64.net/2018/02/fixing-the-wemos-d1-mini-dht22-shield][this blog post]].
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#+ATTR_HTML: :width 60%
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[[./board.jpg]]
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** Pinout of the board
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#+ATTR_HTML: :width 40%
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[[./pinout.png]]
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** Dependencies
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- [[https://github.com/adafruit/DHT-sensor-library][Adafruit DHT sensor library]]
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- [[https://github.com/adafruit/Adafruit_Sensor][Adafruit Unified Sensor Driver]]
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- [[https://github.com/marvinroger/async-mqtt-client][Async MQTT client]]
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- [[https://github.com/bblanchon/ArduinoJson][ArduinoJSON]]
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** Configuration
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** Deployment
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The software uses the Arduino framework and the development environment of [[https://platformio.org/][PlatformIO]], which offers better tools than the Arduino IDE.
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1. Upload the configuration file to the board:
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#+begin_src shell
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pio run -t uploadfs
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#+end_src
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2. Compile the project
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#+begin_src shell
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pio run -t compile
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#+end_src
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3. Upload firmware
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#+begin_src shell
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pio run -t upload
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#+end_src
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